Estefan Nascimento

- Development of automation for provisioning AWS services and resources with Terraform - On Premise infrastructure migration to Cloud (AWS) - Support development teams/squads regarding Devops culture and production deployment - Maintenance and performance review for microservices (Docker) using AWS EKS - Inserted in a 100% AWS environment with experience in EC2/EBS/SG/ASG/AMI/LBs, ECS, EKS, Lambda, VPC/Subnets, Elastica - Container Management on Kubernetes (EKS) - Implementation of metrics and log systems centrally using Grafana, cloudwatch, Splunk, ELK, Jager, Prometheus Data & Machine Learning Pipelines: Working in data and ML squads using Airflow, Spark, and Harness to build robust data pipelines and manage critical environments that support machine learning models. Performance Reviews & Troubleshooting: Conducting continuous reviews for microservices performance (Docker, EKS) and swiftly resolving incidents to maintain optimal system availability.

• Managed approval environment on digital channels, utilizing Grafana to monitor and analyze data with Python, Jmeter, Mysql, InfluxDB. • Implemented Kubernets and Docker on AWS to contract digital channel approval environments, enhancing scalability and segregation. • Proactively predicted problems in the environment, leading to improved efficiency and performance.

• Led the DevOps SRE team at Cherokee Security, focusing on Docker container orchestration with Kubernetes and infrastructure automation with Jenkins. • Designed and built monitoring infrastructure architecture using Grafana, influxdb, and Prometheus to enhance platform scalability and security. • Spearheaded the migration of environments to micro-services, improving system performance and efficiency.

• Managed Windows and Linux Servers, implementing GIT/Gitlab and Jenkins for automated Deploys. • Oversaw Banco Crefisa's environment using Tomcat and Jboss, and implemented DevOps practices for iOS, Android, C#, Delphi, Java, and Dotnet projects. • Spearheaded the automation of compilation and build processes using Git, Jenkins, Puppet, Ansible, and Rundeck.

Main activities: Administration of Windows, Unix and Linux servers and BI, I work in the area, Administration of virtual environments using VMWare. Support Analyst for Everyone operational environments serving solidly with Operating Systems (Windows2003, Windows2008, Linux RedHat) Unix AIX and Tomcat and WebLogic application servers, IBM Websphere, configuring, managing and maintaining servers in the IT park that use the aforementioned technologies. Also support the development team so that applications run on Tomcat, Jboss and IBM DataStage.

Application support and deployment of all Banco Votorantim systems applications version control and maintenance of the environment on servers Focus on systems integration, quality testing, resource development and maintenance versions in order to improve reliability and security and provide faster development and deployment cycles. Support on Server2008, Windows Server 2012, Linux RedHat) and application servers Tomcat and WebLogic, Remedy, IBM Websphere, Puppet, Urbancode Deploy used to deploy applications.

Main activities: Administration of Windows, Unix and Linux servers in the area, Administration of virtual environments using Hyper-V and VMWare, KVM. Support analyst for all operating environments, providing solid support for Operating Systems (Windows Server 2003, Windows Server 2008, Windows Server 2012, Linux RedHat) and application servers Tomcat and WebLogic, Remedy, Clear Quest, IBM Websphere, Nagios, Zabix configuring, administering and maintaining servers in the IT park that use the aforementioned technologies. Deployment of several BmfBovespa post-trading systems. Administrator of Configuration Management Tools: SVN, TFC, GIT, Atlassian Bamboo and Bitbucket. Technician responsible for administering application servers (Post-Trading) for the Legacy system, IPN and related Megabolsa systems. Responsible for certification systems with external stock exchange clients, also responsible for providing support throughout the entire pipeline before non-production. (Development, Homologation and Certification)

As a network operator, I monitored all IT infrastructure such as Swiths and link servers, controlled jobs and backup tapes, and also performed minor maintenance on Dell PowerEd and HP Proliant servers and HP Blades. Also responsible for monitoring data links, through Nagios software. Scheduled backup routines and ran Optimize on MySQL Banks.

Support for the entire infrastructure of the company 4linux maintenance on servers installation and configuration of Asterisk VOIP, Web Servers apache, tomcat, DHCP, NFS, KTDMS, Jboss creation of users and maintenance on the machine park also the installation and configuration of Virtual Servers using VMware server on Linux. Carrying out information security procedures on Linux servers following the BS7799 standard. I also taught at the HackerTeen Program where I developed many activities.